Image Statistics

Tutorials

There are currently no tutorials for ImageStats.

How To Guides

There are currently no how to’s for ImageStats. If there are scenarios that you want us to explain, contact us!

DataEval API

Calculates various image property statistics

Parameters:: flags ([ImageHash | ImageProperty | ImageStatistics | ImageVisuals], default None) – Metric(s) to calculate for each image per channel - calculates all metrics if None

compute() → Dict[str, Any]

Computes the specified measures on the cached values

Returns:: Dictionary results of the specified measures
Return type:: Dict[str, Any]

reset(): Resets the internal metric cache

update(preds: Iterable[ndarray], targets=None) → None

Updates internal metric cache for later calculation

Parameters:: batch (Sequence) – Sequence of images to be processed

Channel Statistics

Tutorials

There are currently no tutorials for ChannelStats.

How To Guides

There are currently no how to’s for ChannelStats. If there are scenarios that you want us to explain, contact us!

DataEval API

class dataeval.metrics.ChannelStats(flags: ImageStatistics | None = None)

compute() → Dict[str, Any]

Computes the specified measures on the cached values

Returns:: Dictionary results of the specified measures
Return type:: Dict[str, Any]

reset() → None: Resets the internal metric cache

update(preds: Iterable[ndarray], targets=None) → None

Updates internal metric cache for later calculation

Parameters:: batch (Sequence) – Sequence of images to be processed

Image Flags

flag dataeval.flags.ImageHash(value)

Valid values are as follows:

XXHASH = <ImageHash.XXHASH: 1>

PCHASH = <ImageHash.PCHASH: 2>

flag dataeval.flags.ImageProperty(value)

Valid values are as follows:

WIDTH = <ImageProperty.WIDTH: 1>

HEIGHT = <ImageProperty.HEIGHT: 2>

SIZE = <ImageProperty.SIZE: 4>

ASPECT_RATIO = <ImageProperty.ASPECT_RATIO: 8>

CHANNELS = <ImageProperty.CHANNELS: 16>

DEPTH = <ImageProperty.DEPTH: 32>

flag dataeval.flags.ImageVisuals(value)

Valid values are as follows:

BRIGHTNESS = <ImageVisuals.BRIGHTNESS: 1>

BLURRINESS = <ImageVisuals.BLURRINESS: 2>

MISSING = <ImageVisuals.MISSING: 4>

ZERO = <ImageVisuals.ZERO: 8>

flag dataeval.flags.ImageStatistics(value)

Valid values are as follows:

MEAN = <ImageStatistics.MEAN: 1>

STD = <ImageStatistics.STD: 2>

VAR = <ImageStatistics.VAR: 4>

SKEW = <ImageStatistics.SKEW: 8>

KURTOSIS = <ImageStatistics.KURTOSIS: 16>

ENTROPY = <ImageStatistics.ENTROPY: 32>

PERCENTILES = <ImageStatistics.PERCENTILES: 64>

HISTOGRAM = <ImageStatistics.HISTOGRAM: 128>